Davis Quick Reference Coastwise Piloting Card [126] Brand_Actisense Output Wattage: 250w

Output Wattage: 250w

Ease of Use – No twist required

15 lbs per speaker

Guardian G-7 - Crown

Davis Quick Reference Coastwise Piloting Card [126] Brand_Actisense Output Wattage: 250wQuick Reference Coastwise Piloting Card All the piloting information you need at your fingertips: dead reckoning basics, true and magnetic compass relationships, position finding, estimating distance off, and current and leeway corrections. Helpful hints on chart reading, preparations, checklists, fog navigation, and depth soundings without a fathometer. Includes time, distance & speed calculator, relative bearing gauge for length off calculations,